A ONE LANE BRIDGE (W5-3) sign should be used on two-way roadways in advance of any bridge or culvert that has a clear roadway width of less than 16 feet, or of less than 18 feet when commercial vehicles constitute a high proportion of the traffic, or of 18 feet or less where the sight distance is limited on the approach to the structure. This sign is a diamond shape with a black legend and border on a yellow background.
- Retroreflective sign is visible day and night
- Durable, weather-resistant traffic grade aluminum
- Pre-punched with radiused corners and 3/8" mounting holes